From 17295c2ddf69aee2d7b05c7bb445423412b11fec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=A8=E5=8A=BC?= <yangjie123098@live.cn>
Date: Tue, 23 Apr 2024 22:53:26 +0800
Subject: [PATCH] =?UTF-8?q?TagInput=20=E5=A2=9E=E5=8A=A0=20CleanLostFocus?=
 =?UTF-8?q?=20=E7=94=A8=E4=BA=8E=E5=A4=B1=E5=8E=BB=E7=84=A6=E7=82=B9?=
 =?UTF-8?q?=E5=90=8E=E6=B8=85=E7=A9=BATextBox=E6=95=B0=E6=8D=AE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 demo/Ursa.Demo/Pages/TagInputDemo.axaml |  1 +
 src/Ursa/Controls/TagInput/TagInput.cs  | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/demo/Ursa.Demo/Pages/TagInputDemo.axaml b/demo/Ursa.Demo/Pages/TagInputDemo.axaml
index fc94f33..eb5dbfc 100644
--- a/demo/Ursa.Demo/Pages/TagInputDemo.axaml
+++ b/demo/Ursa.Demo/Pages/TagInputDemo.axaml
@@ -21,6 +21,7 @@
         <u:TagInput
             Margin="20"
             AllowDuplicates="False"
+            CleanLostFocus="true"
             Separator="-"
             Tags="{Binding DistinctTags}" />
         <ListBox ItemsSource="{Binding DistinctTags}" />
diff --git a/src/Ursa/Controls/TagInput/TagInput.cs b/src/Ursa/Controls/TagInput/TagInput.cs
index 920d9ac..aa45ab4 100644
--- a/src/Ursa/Controls/TagInput/TagInput.cs
+++ b/src/Ursa/Controls/TagInput/TagInput.cs
@@ -50,6 +50,7 @@ public class TagInput : TemplatedControl
     {
         _textBox = new TextBox();
         _textBox.AddHandler(KeyDownEvent, OnTextBoxKeyDown, RoutingStrategies.Tunnel);
+        _textBox.AddHandler(LostFocusEvent, OnTextBox_LostFocus, RoutingStrategies.Bubble);
         Items = new AvaloniaList<object>
         {
             _textBox
@@ -57,6 +58,14 @@ public class TagInput : TemplatedControl
         Tags = new ObservableCollection<string>();
     }
 
+    private void OnTextBox_LostFocus(object? sender, RoutedEventArgs e)
+    {
+        if(CleanLostFocus)
+        {
+            _textBox.Text = "";
+        }
+    }
+
     public static readonly StyledProperty<ControlTheme> InputThemeProperty =
         AvaloniaProperty.Register<TagInput, ControlTheme>(
             nameof(InputTheme));
@@ -86,6 +95,16 @@ public class TagInput : TemplatedControl
         set => SetValue(SeparatorProperty, value);
     }
 
+    public static readonly StyledProperty<bool> CleanLostFocusProperty = AvaloniaProperty.Register<TagInput, bool>(
+        nameof(CleanLostFocus), defaultValue: false);
+
+    public bool CleanLostFocus
+    {
+        get => GetValue(CleanLostFocusProperty);
+        set => SetValue(CleanLostFocusProperty, value);
+    }
+
+
     public static readonly StyledProperty<bool> AllowDuplicatesProperty = AvaloniaProperty.Register<TagInput, bool>(
         nameof(AllowDuplicates), defaultValue: true);